Saturday, August 15, 2015

Hailed as the most significant advance in melanoma treatment
of the past 50 years, will nivolumab and ipilimumab proved to be the proverbial
“magic bullet” in the treatment of melanoma?

By: Ringo Bones

Hailed as the significant advance for medical in science in
the treatment of melanoma of the past 50 years when the results of the medical
trials were first published in The New England Journal Of Medicine back in June
1, 2015, the recent trials for chemotherapy drugs nivolumab and ipilimumab as a
two-drug therapy on the treatment of melanoma showed really promising results. The
medical trials were described as promising because the recent results of the
medical trials have shown that the two chemotherapy drugs have shown to prevent
melanoma metastasis to the liver and lungs. Also, the two-drug therapy enables our
body’s own immune system to better destroy the malignant tumor cells themselves
and the two drugs prevent tumors from avoiding the body’s immune response and
the two drugs also trains our own body’s immune system to better identify and
destroy cancer cells.

Nivolumab is a programmed death 1 [PD-1] checkpoint
inhibitor while ipilimubab is a cytotoxic T-lymphocyte-associated antigen 4
[CTLA-4] checkpoint inhibitor; both of the chemotherapy agents have shown to
have complementary activity in metastatic melanoma. In this randomized, double-blind,
phase 3 study, nivulomab alone or nivolumab plus ipilimubab was compared with
ipilimubab alone in patients with metastatic melanoma.

The trials were assigned in a 1:1:1 ratio, 945 previously
untreated patients with unresectable stage III or stage IV melanoma to
nivolumab alone, nivolumab plus ipilimumab, or ipilimumab alone. Tumors in 58
percent of the cases were stopped using the new treatment. Among previously
untreated patients with metastatic melanoma, nivolumab alone or combined with
ipilimumab resulted in significantly longer progression-free survival than
ipilimumab alone. In patients with PD-L1-negative tumors, the combination of
PD-1 and CTLA-4 blockade was more effective than either agent alone.